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Propyl Paraben
■ Chemical Description
-- Propyl P-hydroxybenzoate， Propyl Paraben
■ CAS No. 94-13-3
■ Molecular and Structural Formula C10H12O3
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■ Characteristics
--White crystalline;
--Easily dissolved in alcohol and ether, but not dissolved in water;
■ Specification
No |
Tests |
Specification |
||
|
Q/SH008-2000 |
B.P2000 |
USP29-NF24 |
||
|
1 |
Characters |
/ |
/ |
Colorless crystals or white crystalline powder |
|
2 |
Purity |
≥99.0 |
98.0-102.0 |
99.0-100.5 |
|
3 |
Melting Point oC |
95-98 |
96-99 |
96-99 |
|
4 |
Acidity |
qualified |
qualified |
qualified |
|
5 |
Sulfate(SO42-) % |
≤0.024 |
/ |
/ |
|
6 |
Heavy Metal(Pb) % |
≤0.001 |
/ |
/ |
|
7 |
Heavy Metal(AS) % |
≤0.0001 |
/ |
/ |
|
8 |
Loss on Drying % |
≤0.50 |
≤0.50 |
/ |
|
9 |
Residue % |
≤0.05 |
≤0.01 |
≤0.10 |
|
10 |
p-Hydroxybenzoic Acid and Salicylic Acid |
qualified |
/ |
/ |
|
11 |
Appearance of Solution |
/ |
/ |
Clear |
|
12 |
Identification |
/ |
qualified |
/ |
|
13 |
Organic Volatile impurities |
/ |
qualified |
/ |
|
14 |
Related Substances |
/ |
/ |
qualified |
■ Application
-- Used as antiseptics in foodstuff, medicine, cosmetics and feed;
■ Packaging and Storage
--Packed in 25, 50 kg fiber or plastic drum, inner lined with PE bags;
--Stored in dry place at room temperature;
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